Lens drive control device of the present invention is produced by the strain deformation of the shape memory alloy member exhibiting the hysteresis characteristics of a given between a lens frame for holding the lens movably in the optical axis direction of the optical lens, and the strain amount and temperature A lens drive control device which controls the lens drive system with a transmission member for transmitting to the lens frame driving force, at the timing of instruction to move back and forth the lens frame is stopped, the temperature of the shape memory alloy member I have a control unit that performs a control to change to a temperature belonging to the dead zone of the hysteresis characteristics of the predetermined.本発明のレンズ駆動制御装置は、光学レンズの光軸方向に進退可能にレンズを保持するレンズ枠と、温度と歪量との間において所定のヒステリシス特性を示す形状記憶合金部材の歪変形により生じる駆動力をレンズ枠に伝達する伝達部材と、を有するレンズ駆動系に対して制御を行うレンズ駆動制御装置であって、レンズ枠を進退移動させる指示が停止したタイミングにおいて、形状記憶合金部材の温度を所定のヒステリシス特性の不感帯に属する温度へ変化させる制御を行う制御部を有する。
